A nanocomposite consisting of porous graphitic carbon nitride nanosheets and oxidized multiwalled carbon nanotubes for simultaneous stripping voltammetric determination of cadmium(II), mercury(II), lead(II) and zinc(II)

Manikandan, R.; Ponnusamy, Vinoth Kumar; Sangilimuthu, Sriman Narayanan

doi:10.1007/s00604-018-3178-7

Cited by 68 publications

(20 citation statements)

References 33 publications

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“…2f shows the ring pattern and diffraction spots, which are indexed to the (002), (101), (200), (211) and (220) crystalline planes of the graphitic nitride, g-C 3 N 4 , and single crystalline tetragonal b-Sn, respectively. [12][13][14] The SAED results in Fig. 2f are consistent with the ndings obtained from the XRD and XPS results that will be described below.…”

Section: Resultssupporting

confidence: 85%

In situ fabrication of dendritic tin-based carbon nanostructures for hydrogen evolution reaction

Ola

Chen

Thummavichai

et al. 2020

Sustainable Energy Fuels

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Section: Resultssupporting

confidence: 85%

In situ fabrication of dendritic tin-based carbon nanostructures for hydrogen evolution reaction

Ola

Chen

Thummavichai

et al. 2020

Sustainable Energy Fuels

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“…Researchers have improved by introducing oxidized multi-wall carbon nanotubes (O–MWCNTs) on a 3D porous graphitic carbon nitride (g-C 3 N 4 ). The nanocomposite was modified on a screen-printed electrode (SPE) for the simultaneous detection of Pb 2+ , Cd 2+ , Zn 2+, and Hg 2+ [ 28 ]. Different electrochemical techniques such as cyclic voltammetry, electrochemical impedance spectroscopy, and differential pulse voltammetry were used to interrogate the quantification of these analytes.…”

Section: Multifunctional Applications Of Graphitic Carbon Nitride mentioning

confidence: 99%

“…Therefore, these analytes’ simultaneous detection was possible because of well-separated peaks potentials of 0.5, −0.78, −11.6, and +0.35 V (vs. Ag/AgCl). The analytes’ detection limits were between 8 to 60 ng/L, and the simultaneous detection of these ions was also carried out in various spiked food samples [ 28 ]. Based on the obtained results, this sensor is highly recommendable owing to the conducting substrate used for the analysis.…”

Section: Multifunctional Applications Of Graphitic Carbon Nitride mentioning

confidence: 99%

“…Mercury (Hg) is one of the notorious heavy metals on the earth’s surface and extremely harmful to humans and animals, even at low concentrations [ 29 ]. Exposure to mercury or its compounds (particularly methylmercury) can cause a series of toxicological effects such as kidney failure, brain damage, deafness, vision impairment, loss of sensation, and poor muscle coordination [ 28 , 29 ]. It is essential to develop a fast and user-friendly sensor for Hg 2+ ions with low cost, high sensitivity, and selectivity.…”

Section: Multifunctional Applications Of Graphitic Carbon Nitride mentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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Graphitic Carbon Nitride: A Highly Electroactive Nanomaterial for Environmental and Clinical Sensing

Idris

Oseghe

Msagati

et al. 2020

Sensors

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Graphitic carbon nitride (g-C3N4) is a two-dimensional conjugated polymer that has attracted the interest of researchers and industrial communities owing to its outstanding analytical merits such as low-cost synthesis, high stability, unique electronic properties, catalytic ability, high quantum yield, nontoxicity, metal-free, low bandgap energy, and electron-rich properties. Notably, graphitic carbon nitride (g-C3N4) is the most stable allotrope of carbon nitrides. It has been explored in various analytical fields due to its excellent biocompatibility properties, including ease of surface functionalization and hydrogen-bonding. Graphitic carbon nitride (g-C3N4) acts as a nanomediator and serves as an immobilization layer to detect various biomolecules. Numerous reports have been presented in the literature on applying graphitic carbon nitride (g-C3N4) for the construction of electrochemical sensors and biosensors. Different electrochemical techniques such as cyclic voltammetry, electrochemiluminescence, electrochemical impedance spectroscopy, square wave anodic stripping voltammetry, and amperometry techniques have been extensively used for the detection of biologic molecules and heavy metals, with high sensitivity and good selectivity. For this reason, the leading drive of this review is to stress the importance of employing graphitic carbon nitride (g-C3N4) for the fabrication of electrochemical sensors and biosensors.

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A Novel Carbon Nitride Nanosheets‐based Electrochemical Sensor for Determination of Hydroxychloroquine in Pharmaceutical Formulation and Synthetic Urine Samples

Silva

Sant’Anna

Gevaerd³

et al. 2021

Electroanalysis

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This study introduces modified carbon paste electrodes with carbon nitride nanosheets (CNNS) and outlines their application for the determination of hydroxychloroquine sulfate (HCQ) in tablets and synthetic urine samples. CNNS were synthesized by hydrothermal route (200°C, 10 h) using melamine and citric acid as their precursors. The carbon nitride nanosheets-based electrode (CNNS/E) presented a linear dynamic range for HCQ (LDR), ranging from 10.0 nmol l À 1 to 6.92 μmol l À 1 , and detection (LOD) and quantification limits (LOQ) of 0.16 nmol l À 1 and 0.52 nmol l À 1 , respectively. LOD and LOQ were calculated by the equations: LOD = 3(S d /b), and LOQ = 10(S d /b). The modified sensor presented excellent relative standard deviations for parameters such as repeatability (2.39 % and 1.87 %) and reproducibility (3.22 % and 2.32 %) in HCQ oxidation peaks (1 and 2). The CNNS/E has not shown significant variations in its anodic signal intensity in the presence of some organic and inorganic substances. It is worth bearing in mind that CNNS/E can be easily manufactured and the sensor has the lowest HCQ detection limits reported so far. The proposed sensor was successfully applied for HCQ determination in tablets and synthetic urine, showing good recovery values and an error of 0.60 % about comparative method in tablet samples, assuring the quality of the method.

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A nanocomposite consisting of porous graphitic carbon nitride nanosheets and oxidized multiwalled carbon nanotubes for simultaneous stripping voltammetric determination of cadmium(II), mercury(II), lead(II) and zinc(II)

Cited by 68 publications

References 33 publications

In situ fabrication of dendritic tin-based carbon nanostructures for hydrogen evolution reaction

In situ fabrication of dendritic tin-based carbon nanostructures for hydrogen evolution reaction

Graphitic Carbon Nitride: A Highly Electroactive Nanomaterial for Environmental and Clinical Sensing

A Novel Carbon Nitride Nanosheets‐based Electrochemical Sensor for Determination of Hydroxychloroquine in Pharmaceutical Formulation and Synthetic Urine Samples

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